The invention relates to a process for preparing optically enriched isoxazoline compounds of formula (I), formula (I), wherein the variables are as defined in the specification, and the shown enantiomer has at least 55% ee; by oxo-Michael addition of hydroxyl amine or its salt to an enone of formula (II), formula (II), wherein the variables have the meanings given for formula (I), in the presence of a catalyst of formula (III), formula (III), and a base, the invention furthermore relates to novel compounds of formula (III).
本发明涉及一种用于制备光学富集
异恶唑啉化合物公式(I)的过程,公式(I),其中变量如说明书中所定义,并且所示对映体至少具有55%的ee;通过羟基胺或其盐的氧代-Michael加成到公式(II)的烯酮上,公式(II),其中变量具有如公式(I)所给出的含义,在公式(III)的催化剂和碱的存在下,本发明还涉及新型公式(III)的化合物。